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Relay

Official registry Media and design

Business phone and SMS for teams: calls, texts, transcripts, contacts and call flows.

Source code Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http relay 'https://api.yesrelay.com/api/mcp' --header 'Authorization: <Relay API key as a Bearer token (Bearer rk_live_...). Create it in the app under Administration, Integrations & API.>'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "relay": {
            "type": "http",
            "url": "https://api.yesrelay.com/api/mcp",
            "headers": {
                "Authorization": "<Relay API key as a Bearer token (Bearer rk_live_...). Create it in the app under Administration, Integrations & API.>"
            }
        }
    }
}

Frequently asked questions

What is Relay?

Business phone and SMS for teams: calls, texts, transcripts, contacts and call flows.

How do I install Relay?

It runs as a remote server. In Claude Code: claude mcp add --transport http relay 'https://api.yesrelay.com/api/mcp' --header 'Authorization: <Relay API key as a Bearer token (Bearer rk_live_...). Create it in the app under Administration, Integrations & API.>'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Relay need an API key?

Yes. It expects Authorization, which you set in its configuration.

Is Relay open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Relay?

It is published by yesrelay. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.